Hydraulic buffer assembly
AssigneeITT Manufacturing Enterprises, Inc.
InventorJohn T. Koscielniak
Life of this patent
Estimating the term…
Abstract
A hydraulic buffer assembly for use in a paint gun includes a sealed housing having first and second ends and an interior including a chamber containing a hydraulic fluid. A piston assembly including at least one piston rod and a piston head is axially movable through the interior of the housing, wherein the piston head includes at least one orifice through which hydraulic fluid flows when the piston assembly is moved under load. The buffer assembly is configured to decrease or slow the firing rate of an automatic paint gun.
Claims15
A hydraulic buffer assembly for use in a paint gun, the buffer assembly comprising:
- an assembly housing configured to be disposed within the paint gun, the assembly housing having opposing first and second ends and an interior including a chamber containing a quantity of a hydraulic fluid;
- a piston assembly including at least one piston rod and a piston head axially movable through the interior of the assembly housing, the piston head being sized or including at least one orifice through which hydraulic fluid is configured to move through and around the piston head when the piston assembly is under load, the piston assembly being configured to stroke a set distance within the paint gun in a set time during the firing and reset cycle in order to slow the firing rate thereof;
- and
- a glide ring movably disposed on a narrowed portion of the piston head within the interior of the assembly housing, the glide ring having at least one through opening aligned with the at least one orifice of the piston head and an outer diameter that essentially matches the interior diameter of the assembly housing, in which the glide ring is axially movable to seal against the piston head to prevent fluid from moving around the piston head and only through the at least one orifice of the piston head when the piston assembly is moved in a first axial direction and in which the glide ring is spaced away from the piston head to permit the hydraulic fluid to move around the piston head and through the aligned at least one opening of the glide ring and the at least one orifice of the piston head when the piston assembly is moved in a second axial direction opposite the first axial direction.
A hydraulic buffer assembly comprising:
- an assembly housing having opposing first and second ends and an interior including a chamber containing a quantity of a hydraulic fluid;
- a piston assembly including a first piston rod and a second piston rod disposed serially and a piston head, the piston assembly being configured for axial movement through the interior of the assembly housing, the piston head being sized or including at least one orifice through which hydraulic fluid is configured to move through or around the piston head when the piston assembly is under load;
- and
- a glide ring movably disposed on a narrowed portion of the piston head, the glide ring having at least one through opening aligned with the at least one orifice of the piston head and having an outer diameter that substantially matches an inner diameter of the interior of the assembly housing, wherein the glide ring is caused to seal against the piston head and prevent hydraulic fluid from moving around the piston head and only through the at least one orifice when the piston assembly is moved in a first axial direction and in which hydraulic fluid is permitted to move around and through the piston head when the piston assembly is moved in an opposing second axial direction.
Dependencies are inferred from the claim text.